805 lines
24 KiB
C++
805 lines
24 KiB
C++
/*
|
|
* Copyright © 2015 Intel Corporation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include <gtest/gtest.h>
|
|
#include "brw_fs.h"
|
|
#include "brw_cfg.h"
|
|
#include "program/program.h"
|
|
|
|
using namespace brw;
|
|
|
|
class saturate_propagation_test : public ::testing::Test {
|
|
virtual void SetUp();
|
|
virtual void TearDown();
|
|
|
|
public:
|
|
struct brw_compiler *compiler;
|
|
struct intel_device_info *devinfo;
|
|
void *ctx;
|
|
struct brw_wm_prog_data *prog_data;
|
|
struct gl_shader_program *shader_prog;
|
|
fs_visitor *v;
|
|
};
|
|
|
|
class saturate_propagation_fs_visitor : public fs_visitor
|
|
{
|
|
public:
|
|
saturate_propagation_fs_visitor(struct brw_compiler *compiler,
|
|
void *mem_ctx,
|
|
struct brw_wm_prog_data *prog_data,
|
|
nir_shader *shader)
|
|
: fs_visitor(compiler, NULL, mem_ctx, NULL,
|
|
&prog_data->base, shader, 16, false) {}
|
|
};
|
|
|
|
|
|
void saturate_propagation_test::SetUp()
|
|
{
|
|
ctx = ralloc_context(NULL);
|
|
compiler = rzalloc(ctx, struct brw_compiler);
|
|
devinfo = rzalloc(ctx, struct intel_device_info);
|
|
compiler->devinfo = devinfo;
|
|
|
|
prog_data = ralloc(ctx, struct brw_wm_prog_data);
|
|
nir_shader *shader =
|
|
nir_shader_create(ctx, MESA_SHADER_FRAGMENT, NULL, NULL);
|
|
|
|
v = new saturate_propagation_fs_visitor(compiler, ctx, prog_data, shader);
|
|
|
|
devinfo->ver = 6;
|
|
devinfo->verx10 = devinfo->ver * 10;
|
|
}
|
|
|
|
void saturate_propagation_test::TearDown()
|
|
{
|
|
delete v;
|
|
v = NULL;
|
|
|
|
ralloc_free(ctx);
|
|
ctx = NULL;
|
|
}
|
|
|
|
|
|
static fs_inst *
|
|
instruction(bblock_t *block, int num)
|
|
{
|
|
fs_inst *inst = (fs_inst *)block->start();
|
|
for (int i = 0; i < num; i++) {
|
|
inst = (fs_inst *)inst->next;
|
|
}
|
|
return inst;
|
|
}
|
|
|
|
static bool
|
|
saturate_propagation(fs_visitor *v)
|
|
{
|
|
const bool print = false;
|
|
|
|
if (print) {
|
|
fprintf(stderr, "= Before =\n");
|
|
v->cfg->dump();
|
|
}
|
|
|
|
bool ret = v->opt_saturate_propagation();
|
|
|
|
if (print) {
|
|
fprintf(stderr, "\n= After =\n");
|
|
v->cfg->dump();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, basic)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.ADD(dst0, src0, src1);
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 dst0
|
|
*
|
|
* = After =
|
|
* 0: add.sat(16) dst0 src0 src1
|
|
* 1: mov(16) dst1 dst0
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_TRUE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 1)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, other_non_saturated_use)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst2 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.ADD(dst0, src0, src1);
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
bld.ADD(dst2, dst0, src0);
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 dst0
|
|
* 2: add(16) dst2 dst0 src0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 2)->opcode);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, predicated_instruction)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.ADD(dst0, src0, src1)
|
|
->predicate = BRW_PREDICATE_NORMAL;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: (+f0) add(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 dst0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, neg_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
bld.RNDU(dst0, src0);
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: rndu(16) dst0 src0
|
|
* 1: mov.sat(16) dst1 -dst0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_RNDU, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, add_neg_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.ADD(dst0, src0, src1);
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 -dst0
|
|
*
|
|
* = After =
|
|
* 0: add.sat(16) dst0 -src0 -src1
|
|
* 1: mov(16) dst1 dst0
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_TRUE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 0)->saturate);
|
|
EXPECT_TRUE(instruction(block0, 0)->src[0].negate);
|
|
EXPECT_TRUE(instruction(block0, 0)->src[1].negate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 1)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, add_imm_float_neg_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = brw_imm_f(1.0f);
|
|
bld.ADD(dst0, src0, src1);
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(16) dst0 src0 1.0f
|
|
* 1: mov.sat(16) dst1 -dst0
|
|
*
|
|
* = After =
|
|
* 0: add.sat(16) dst0 -src0 -1.0f
|
|
* 1: mov(16) dst1 dst0
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_TRUE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 0)->saturate);
|
|
EXPECT_TRUE(instruction(block0, 0)->src[0].negate);
|
|
EXPECT_EQ(instruction(block0, 0)->src[1].f, -1.0f);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 1)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, mul_neg_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.MUL(dst0, src0, src1);
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: mul(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 -dst0
|
|
*
|
|
* = After =
|
|
* 0: mul.sat(16) dst0 src0 -src1
|
|
* 1: mov(16) dst1 dst0
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_TRUE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 0)->saturate);
|
|
EXPECT_TRUE(instruction(block0, 0)->src[0].negate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 1)->saturate);
|
|
EXPECT_FALSE(instruction(block0, 1)->src[0].negate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, mad_neg_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src2 = v->vgrf(glsl_type::float_type);
|
|
bld.MAD(dst0, src0, src1, src2);
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: mad(16) dst0 src0 src1 src2
|
|
* 1: mov.sat(16) dst1 -dst0
|
|
*
|
|
* = After =
|
|
* 0: mad.sat(16) dst0 -src0 -src1 src2
|
|
* 1: mov(16) dst1 dst0
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_TRUE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_MAD, instruction(block0, 0)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 0)->saturate);
|
|
EXPECT_TRUE(instruction(block0, 0)->src[0].negate);
|
|
EXPECT_TRUE(instruction(block0, 0)->src[1].negate);
|
|
EXPECT_FALSE(instruction(block0, 0)->src[2].negate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 1)->saturate);
|
|
EXPECT_FALSE(instruction(block0, 1)->src[0].negate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, mad_imm_float_neg_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = brw_imm_f(1.0f);
|
|
fs_reg src1 = brw_imm_f(-2.0f);
|
|
fs_reg src2 = v->vgrf(glsl_type::float_type);
|
|
/* The builder for MAD tries to be helpful and not put immediates as direct
|
|
* sources. We want to test specifically that case.
|
|
*/
|
|
fs_inst *mad = bld.MAD(dst0, src2, src2, src2);
|
|
mad->src[0]= src0;
|
|
mad->src[1] = src1;
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: mad(16) dst0 1.0f -2.0f src2
|
|
* 1: mov.sat(16) dst1 -dst0
|
|
*
|
|
* = After =
|
|
* 0: mad.sat(16) dst0 -1.0f 2.0f src2
|
|
* 1: mov(16) dst1 dst0
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_TRUE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_MAD, instruction(block0, 0)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(instruction(block0, 0)->src[0].f, -1.0f);
|
|
EXPECT_EQ(instruction(block0, 0)->src[1].f, 2.0f);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 1)->saturate);
|
|
EXPECT_FALSE(instruction(block0, 1)->src[0].negate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, mul_mov_sat_neg_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst2 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.MUL(dst0, src0, src1);
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst2, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: mul(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 dst0
|
|
* 2: mov.sat(16) dst2 -dst0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_FALSE(instruction(block0, 0)->src[1].negate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 2)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 2)->src[0].negate);
|
|
EXPECT_TRUE(instruction(block0, 2)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, mul_neg_mov_sat_neg_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst2 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.MUL(dst0, src0, src1);
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
set_saturate(true, bld.MOV(dst2, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: mul(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 -dst0
|
|
* 2: mov.sat(16) dst2 -dst0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_FALSE(instruction(block0, 0)->src[1].negate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->src[0].negate);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 2)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 2)->src[0].negate);
|
|
EXPECT_TRUE(instruction(block0, 2)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, abs_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.ADD(dst0, src0, src1);
|
|
dst0.abs = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 (abs)dst0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, producer_saturates)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst2 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
set_saturate(true, bld.ADD(dst0, src0, src1));
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
bld.MOV(dst2, dst0);
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add.sat(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 dst0
|
|
* 2: mov(16) dst2 dst0
|
|
*
|
|
* = After =
|
|
* 0: add.sat(16) dst0 src0 src1
|
|
* 1: mov(16) dst1 dst0
|
|
* 2: mov(16) dst2 dst0
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
|
|
EXPECT_TRUE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 1)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, intervening_saturating_copy)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst2 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.ADD(dst0, src0, src1);
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
set_saturate(true, bld.MOV(dst2, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 dst0
|
|
* 2: mov.sat(16) dst2 dst0
|
|
*
|
|
* = After =
|
|
* 0: add.sat(16) dst0 src0 src1
|
|
* 1: mov(16) dst1 dst0
|
|
* 2: mov(16) dst2 dst0
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
|
|
EXPECT_TRUE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 1)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 2)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 2)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, intervening_dest_write)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::vec4_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src2 = v->vgrf(glsl_type::vec2_type);
|
|
bld.ADD(offset(dst0, bld, 2), src0, src1);
|
|
bld.emit(SHADER_OPCODE_TEX, dst0, src2)
|
|
->size_written = 8 * REG_SIZE;
|
|
set_saturate(true, bld.MOV(dst1, offset(dst0, bld, 2)));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(16) dst0+2 src0 src1
|
|
* 1: tex(16) rlen 4 dst0+0 src2
|
|
* 2: mov.sat(16) dst1 dst0+2
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(SHADER_OPCODE_TEX, instruction(block0, 1)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 2)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 2)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, mul_neg_mov_sat_mov_sat)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst2 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.MUL(dst0, src0, src1);
|
|
dst0.negate = true;
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
dst0.negate = false;
|
|
set_saturate(true, bld.MOV(dst2, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: mul(16) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 -dst0
|
|
* 2: mov.sat(16) dst2 dst0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(2, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_FALSE(instruction(block0, 0)->src[1].negate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
EXPECT_TRUE(instruction(block0, 1)->src[0].negate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 2)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 2)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, smaller_exec_size_consumer)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.ADD(dst0, src0, src1);
|
|
set_saturate(true, bld.group(8, 0).MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(16) dst0 src0 src1
|
|
* 1: mov.sat(8) dst1 dst0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
}
|
|
|
|
TEST_F(saturate_propagation_test, larger_exec_size_consumer)
|
|
{
|
|
const fs_builder &bld = v->bld;
|
|
fs_reg dst0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg dst1 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src0 = v->vgrf(glsl_type::float_type);
|
|
fs_reg src1 = v->vgrf(glsl_type::float_type);
|
|
bld.group(8, 0).ADD(dst0, src0, src1);
|
|
set_saturate(true, bld.MOV(dst1, dst0));
|
|
|
|
/* = Before =
|
|
*
|
|
* 0: add(8) dst0 src0 src1
|
|
* 1: mov.sat(16) dst1 dst0
|
|
*
|
|
* = After =
|
|
* (no changes)
|
|
*/
|
|
|
|
v->calculate_cfg();
|
|
bblock_t *block0 = v->cfg->blocks[0];
|
|
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
|
|
EXPECT_FALSE(saturate_propagation(v));
|
|
EXPECT_EQ(0, block0->start_ip);
|
|
EXPECT_EQ(1, block0->end_ip);
|
|
EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode);
|
|
EXPECT_FALSE(instruction(block0, 0)->saturate);
|
|
EXPECT_EQ(BRW_OPCODE_MOV, instruction(block0, 1)->opcode);
|
|
EXPECT_TRUE(instruction(block0, 1)->saturate);
|
|
}
|